I have an ad out for someone to create something like this. We found something even better, but the feed was showing more than just thread/post creation--it was even showing who was writing a conversation or reporting a post. I've reached out to the plugin author about tweaking it, but he's too busy to do it yet.
However, for the first time ever, each forum has its own RSS feed. Any free feed reader can work exactly the same as a news feed. Just subscribe to the the forums that you're interested in using any feed reader.